Thunderbolt 1003 Rotating at 8 RPM

FINALLY, although it's going more like 6 to 7.5 RPM, as the motor was under to much of a load for the 120V to handle D:

Category:

Science & Technology

Tags:

• civil
• defense
• thunderbolt
• 1003
• air
• raid
• siren
• rotating
• at
• rpm
• bitches

[bait28]

@murrfarms i dremel'd the fan off, and what are the bearing for the chopper? it needs new ones too. also i may need a new armature, as mine is burned out. although i have temp fixed it.

[murrfarms]

@bait28 Ah lol, just like mine then. Did you get new bearings for it yet? If you haven't, the best place to get some is at your local NAPA auto parts dealer, and both of the bearings are type "6203-2RSJ" made by SKF. I think they're about a few dollars a piece, can't remember the exact price. Did the fan break all the way off? If not, I'd try and take the rest off if just a chunk broke out of it. It's not completely necessary for as short as they run, but it's nice to have lol.

[bait28]

@murrfarms yeah, its a 120/240, and i took it out today to get new bearing, but dropped the motor and the fan broke off the axel. should i be worried?, also the bearings are dead beyond dead.

[bait28]

@murrfarms lol, my blower motor says 208-240/480V and has 9 wires.

[murrfarms]

@bait28 Haha yeah, it can be a bit confusing at first so don't be worried. I can gladly help with any of it if you need any, just let me know. Best way to know for sure is to take some pics of the motor tag and its wiring inside the junction box, and also take a look inside the blower motor's junction box and see how many wire connections are in it. If there are 4 connections it's wired for 208-240V, and if there are 6 it's wired for 480V.

[bait28]

@murrfarms it seems to be centrifugal start. i'll check but it also doesn't even heat up when it's running. also, my blower has a 3 phase 7.5 hp lincoln motor. i'm confused.

[murrfarms]

@bait28 For real? It looks just like the Dayton 4K852M 1/3hp motor in my Thunderbolt. It does have a capacitor, notice the long bulge on the top of the motor (well, bottom since it's upside down in there). Might want to double check and be sure, since most 480V-model Thunderbolts had a three phase rotator motor instead of the single phase cap-start. Also had a GIGANTIC transformer for the chopper inside the RCM1A*480. Just don't want you to accidentally burn it up lol.

[bait28]

@murrfarms it's a 220/480 motor. no 120 for me. also this is a centrifugal start.(you can hear the switch start up in my other video)

[murrfarms]

You know you're supposed to rewire the 6 leads on the back of the motor before you run it on 120V right? Running it as it is on 120V will burn that motor up VERY quickly, as capacitor start motors are only made to run on their designed voltage (or within +/- 5%). These dual voltage motors have to be rewired before they can run on the lower voltage. There's a diagram on the motor's nameplate that shows you what leads go where for both input voltages.

[bait28]

@hootergirlsrhot meh, i wasn't up for a commentary in this video. The video of the blower starting up is going to be this weekend.